Dynamic magnetic detacher
AssigneeTyco Fire & Security GmbH
InventorsJustin Stewart, Ronald B. Easter
Life of this patent
Estimating the term…
Abstract
A system is provided. The system includes a detacher. The detacher includes a field source. The field source is arranged to provide a first magnetic field when power is applied to the field source. The detacher further includes a magnet arranged to provide a second magnetic field. The magnet is movable from a non-detach position to a detach position when exposed to the first magnetic field. The second magnetic field is arranged to unlock a security tag when the magnet is at the detach location. The system further includes an activation device. The activation device includes a processor configured to trigger power to be supplied to the field source.
Claims22
A detacher for unlocking a security tag that can be magnetically released, the detacher comprising:
- a stop structure;
- a magnet moveable between a non-detach position in which the magnet is adjacent to the stop structure and a detach position in which the magnet is separated a distance from the stop structure;
- a field source arranged to provide:
- a first magnetic field when power is applied to the field source such that the magnet is repelled in a first direction whereby the magnet is lifted from the non-detach position to the detach position;
- and a continuous base magnetic field that causes the magnet to move in a second direction opposed from the first direction by way of magnetic attraction such that the magnet transitions from the detach position to the non-detach position when a supply of power to the field source is discontinued;
- and
- a security tag receiver positioned proximate to the magnet when the magnet is in the detach position;
- wherein the magnet provides a second magnetic field that extends into the security tag receiver when the magnet is at the detach position and not when the magnet is at the non-detach position;
- and
- wherein the stop structure resides between the magnet and at least a portion of the field source.
A system for unlocking a security tag that can be magnetically released, the system comprising:
- a detacher including:
- a magnet moveable between a non-detach position and a detach position;
- and a field source arranged to provide
- a first magnetic field when power is applied to the field source such that the magnet is repelled in a first direction whereby the magnet is lifted from the non-detach position to the detach position, and
- a continuous base magnetic field that causes the magnet to move in a second direction opposed from the first direction by way of magnetic attraction such that the magnet transitions from the detach position to the non-detach position when a supply of power to the field source is discontinued;
- and
- an activation device including a processor configured to trigger power to be supplied to the field source;
- wherein a stop structure is provided between the magnet and at least a portion of the field source.
A method for manufacturing a security tag detacher for unlocking a security tag that is magnetically releasable, the security tag detacher having a field source arranged to provide a first magnetic field and a magnet arranged to provide a second magnet field, the method comprising:
- configuring the field source to provide
- the first magnetic field when power is applied to the field source such that the magnet is repelled in a first direction whereby the magnet is lifted from a non-detach position to a detach position, and
- a continuous base magnetic field that causes the magnet to move in a second direction opposed from the first direction by way of magnetic attraction such that the magnet transitions from the detach position to the non-detach position when a supply of power to the field source is discontinued;
- configuring a housing having a cavity to hold the magnet in the non-detach position and in the detach position;
- and
- configuring a security tag receiver positioned proximate to the magnet when the magnet is in the detach position;
- wherein a stop structure is provided between the magnet and at least a portion of the field source.
Dependencies are inferred from the claim text.